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QUESTION 1: The internal and external diameter of a circular steel tank are 30 cm and...

QUESTION 1:

The internal and external diameter of a circular steel tank are 30 cm and 32 cm, respectively, and its total height is 60 cm. A natural moist (wet) soil sample is compacted in the tank up to a 50 cm height. In its natural moist state, the soil sample has the total mass of 70000 g before the water content determination. The specific gravity, Gs of the soil is given as 2.7. The values obtained for the determination of water content are: The mass of moist soil + mass of circular steel tank = 73500 g; the mass of fully dry soil + circular steel tank = 58500 g; the mass of the partially dry soil + circular steel tank = 63800 g; the mass of fully dry soil = 55000 g; and mass of the circular steel tank = 3500 g.

Calculate the following values:

The water content, w (give your answer as a ratio and as a percentage)

What mass of water in grams is required to make the soil fully saturated, if it was partially saturated?

Show the formula relationship between the specific gravity and the dry density of soil and unit mass of solids.

Engineering   Civil-Engineering   
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